The following is a mostly complete list of the classical piano repertoire that I have performed over the years (discounting most pieces performed before I was 16). The list includes chamber works with a substantial piano part, but not all the songs I've accompanied (too many to list here).
Gershwin: Rhapsody in blue
Grieg: Piano concerto in A minor
Mozart: Piano concerto No.21 in C major
Brahms: Cello sonata No.1 in E minor; Violin sonata in D minor
Franck: Violin sonata
Mendelssohn: Piano trio No.1 in D minor
Prokofiev: Cello sonata in C; Flute sonata in D
Rachmaninov: Cello sonata in G minor
Schubert: Piano trio No.1 in B flat (first movement)
Shostakovich: Cello sonata in D minor
Alkan: Symphony for solo piano; Concerto for solo piano; Le festin d'Esope; Le tambour bat aux champs; Petit conte; Super flumina Babylonis; Chant d'amour/chant de mort; Allegro barbaro; Etude in A flat; Chant in E; Scherzetto; Toccatina
Bach: Chromatic fantasy and fugue; Italian concerto (first movement); Sheep may safely graze (arr. Howe); Preludes and fugues (Book I) Nos. 1,2,3,17,22
Balakirev: Sonata in B flat minor; Islamey
Beethoven: Sonatas 2,4,5,6,8,9,10,13,14,16,21,23,24,25,26,27,28 (see also my separate Beethoven sonata page); Andante favori; Polonaise
Brahms: Variations and fugue on a theme of Handel; Intermezzo in E flat; Intermezzo in A
Chopin: Sonata No.2 in B flat minor; Sonata No.3 in B minor; Ballade No.1 in G minor; Ballade No.3 in A flat; Fantasie-Impromptu; Etude in E; Etude in A minor; Preludes Nos. 13-18.
Debussy: Reflets dans l'eau; Cloches a travers les feuilles; L'isle joyeuse; Clair de lune; Golliwogg's cake walk
Gershwin: Rhapsody in Blue (solo version); Prelude No.1; Song transcriptions (I got rhythm; The man I love; Lady, be good)
Grieg: Berceuse; Melodie; Notturno; Brooklet; Homeward; March of the dwarfs; Wedding day at Troldhaugen
Haydn: Sonata No.46 in E flat
Ives: The Alcotts (from Concord Sonata)
Janacek: Sonata 1.X.1905
Liszt: Hungarian rhapsody No.12; Paysage; Wilde jagd; Chasse-neige; La campanella; Liebestraum No.3
Mozart: Sonata in D, K.311
Mussorgsky: Pictures at an exhibition
Prokofiev: Sonata No.3
Rachmaninov: Prelude in C sharp minor; Prelude in G minor; Prelude in G sharp minor
Ravel: Jeux d'eau
Schubert: Wanderer fantasy; Impromptus Op.90 Nos.1,2,3; Impromptu Op.142 No.2; Wohin? (transc. Liszt); Die Forelle (transc. Liszt)
Schumann: ABEGG variations; Widmung (transc. Liszt)
Stravinsky: Three movements from Petrushka
Takemitsu: Rain tree sketch